Belgium’s most used payment method is Bancontact. Bancontact have an app which allows one to send money (pay online) or receive money by scanning a QR code appearing either on the website of a merchant or on a friend’s phone.
Aware of that, PayPal enabled Bancontact top-ups, especially as many people in Belgium don’t use a credit card. Top-ups and everything listed above are instant. I think it would be very nice to be able to top-up using Bancontact.